Linux Kernel up to 5.19.1 KVM injection

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.19.1. It has been classified as problematic. This issue affects some unknown processing of the component KVM. Performing a manipulation results in injection. This vulnerability is known as CVE-2022-50228. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 5.19.1. This affects an unknown code block of the component KVM. The manipulation with an unknown input leads to a injection vulnerability. CWE is classifying the issue as CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. This is going to have an impact on integrity. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0 Don't BUG/WARN on interrupt injection due to GIF being cleared, since it's trivial for userspace to force the situation via KVM_SET_VCPU_EVENTS (even if having at least a WARN there would be correct for KVM internally generated injections). kernel BUG at arch/x86/kvm/svm/svm.c:3386! invalid opcode: 0000 [#1] SMP CPU: 15 PID: 926 Comm: smm_test Not tainted 5.17.0-rc3+ #264 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:svm_inject_irq+0xab/0xb0 [kvm_amd] Code: <0f> 0b 0f 1f 00 0f 1f 44 00 00 80 3d ac b3 01 00 00 55 48 89 f5 53 RSP: 0018:ffffc90000b37d88 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88810a234ac0 RCX: 0000000000000006 RDX: 0000000000000000 RSI: ffffc90000b37df7 RDI: ffff88810a234ac0 RBP: ffffc90000b37df7 R08: ffff88810a1fa410 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff888109571000 R14: ffff88810a234ac0 R15: 0000000000000000 FS: 0000000001821380(0000) GS:ffff88846fdc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f74fc550008 CR3: 000000010a6fe000 CR4: 0000000000350ea0 Call Trace: <TASK> inject_pending_event+0x2f7/0x4c0 [kvm] kvm_arch_vcpu_ioctl_run+0x791/0x17a0 [kvm] kvm_vcpu_ioctl+0x26d/0x650 [kvm] __x64_sys_ioctl+0x82/0xb0 do_syscall_64+0x3b/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae </TASK>

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2022-50228 since 06/18/2025. The exploitability is told to be difficult. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/29/2026). MITRE ATT&CK project uses the attack technique T1055 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 264665 (SUSE SLES12 Security Update : kernel (SUSE-SU-2025:03204-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.326, 4.14.291, 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18 or 5.19.2 eliminates this vulnerability. Applying the patch 2c49adeb020995236e63722ef6d0bee14372f471/6fcbab82ccbcde915644085f73d3487938bda42d/c3396c1c8b87510f2ac2a674948156577559d42d/68e1313bb8809e8addcd9431f2bfea0e8ddbca80/8bb683490278005b4caf61e22b0828a04d282e86/6afe88fbb40eac3291a8728688d61fdc745d8008/3d4e2d884da6312df7c9b85fbf671de49204ead6/2eee1dba70f57148fc7f8252613bfae6bd4b04e3/f17c31c48e5cde9895a491d91c424eeeada3e134 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (264665) and CERT Bund (WID-SEC-2025-1350). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Dell Avamar
  • Dell NetWorker
  • Dell Secure Connect Gateway
  • IBM QRadar SIEM

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 4.0

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Injection
CWE: CWE-74 / CWE-707 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 264665
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2025:03204-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.9.326/4.14.291/4.19.256/5.4.211/5.10.137/5.15.61/5.18.18/5.19.2
Patch: 2c49adeb020995236e63722ef6d0bee14372f471/6fcbab82ccbcde915644085f73d3487938bda42d/c3396c1c8b87510f2ac2a674948156577559d42d/68e1313bb8809e8addcd9431f2bfea0e8ddbca80/8bb683490278005b4caf61e22b0828a04d282e86/6afe88fbb40eac3291a8728688d61fdc745d8008/3d4e2d884da6312df7c9b85fbf671de49204ead6/2eee1dba70f57148fc7f8252613bfae6bd4b04e3/f17c31c48e5cde9895a491d91c424eeeada3e134

Timelineinfo

06/18/2025 Advisory disclosed
06/18/2025 +0 days CVE reserved
06/18/2025 +0 days VulDB entry created
01/29/2026 +225 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50228 (🔒)
GCVE (CVE): GCVE-0-2022-50228
GCVE (VulDB): GCVE-100-313185
CERT Bund: WID-SEC-2025-1350 - Linux Kernel: Mehrere Schwachstellen erm&ouml;glichen Denial of Service

Entryinfo

Created: 06/18/2025 15:45
Updated: 01/29/2026 07:17
Changes: 06/18/2025 15:45 (58), 09/13/2025 19:26 (2), 10/20/2025 05:06 (7), 11/19/2025 19:40 (13), 01/29/2026 07:17 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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